Discussion
Home ‣ Electrical Engineering ‣ Energy and Power See What Others Are Saying!
- Question
Watt's law states the relationships of power to energy.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The quantity 3.3 × 103 is the same as
Options- A. 330
- B. 3,300
- C. 33,000
- D. 0.0033 Discuss
- 2. What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current?
Options- A. 2,400 At
- B. 240 At
- C. 24 At
- D. 2.4 At Discuss
- 3. A 120 Ω resistor must carry a maximum current of 25 mA. Its rating should be at least
Options- A. 4.8 W
- B. 150 mW
- C. 15 mW
- D. 480 mW Discuss
- 4. A complex number represents a phasor quantity.
Options- A. True
- B. False Discuss
- 5. To increase the current in a series RL circuit, the frequency
Options- A. should be increased
- B. should be decreased
- C. should be constant
- D. cannot be determined without values Discuss
- 6. You cannot convert a voltage source to an equivalent current source, or vice versa.
Options- A. True
- B. False Discuss
- 7. Power rating is related to resistance value.
Options- A. True
- B. False Discuss
- 8. In an RL high-pass filter, the output is taken across the inductor and the output leads the input.
Options- A. True
- B. False Discuss
- 9. A 15 V source is connected across a 12 Ω resistor. How much energy is used in three minutes?
Options- A. 938 Wh
- B. 0.938 Wh
- C. 56.25 Wh
- D. 5.6 Wh Discuss
- 10. A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is
Options- A. 0.58 Ah
- B. 2.1 Ah
- C. 21 Ah
- D. 58 Ah Discuss
More questions
Correct Answer: 3,300
Correct Answer: 24 At
Correct Answer: 150 mW
Correct Answer: True
Correct Answer: should be decreased
Correct Answer: False
Correct Answer: False
Correct Answer: True
Correct Answer: 0.938 Wh
Correct Answer: 21 Ah
Comments
There are no comments.More in Electrical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.